multiple outputs with a laptop would be best handled by a firewire interface of sorts (or usb... but usb = blegh). you just have to make sure your interface works well with your laptop, or else you will be getting a lot of hiccups (my presonus firebox doesnt get along with my laptop, specifically the TSST optical drive i have, so in order to avoid lots of hiccups, i have to disable my CD/DVD burner unless im specifically using it.
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